Inverted incandescent gas-lamp.



W. GORLITZER.

INVBRTBD INOANDESOENT GAS LAMP.

APPLICATION TILED JAN. 16, 1912.

Patented July 1, 1913.

INVENTOR Wilhelm Gor/ifzer- BY WITNESSES ATTORNEYS WILHELM GORLITZER, OF VIENNA, AUSTRIA-HUNGARY.

INVERTED INCANDESCENT GAS-LAMP.

Application filed January 16, 1912.

To all whom it may concern:

Be it known that I, WILI-IELM Gounrrznn, a subject of the Emperor of Austria-I-Iungary, residing at Vienna, Empire of Austria-I-Iungary, have invented certain new and useful Improvements in Inverted Incandescent Gas-Lamps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to Which it appertains to make and use the same.

It has already been proposed to so arrange incandescent gas lamps, more particularly such as are provided with inverted burners, that various parts, for instance the reflector, the protecting cage for the mantle, and the mixing tube may be removed from the lamp for cleaning, for changing them or for similar purposes by simple manipulations without the use of tools. More particularly in the case of incandescent gas lamps for railway passenger cars it is highly desirable that the lamp may be readily taken to pieces and the several parts be cleaned or changed outside the compartment without incommoding the passengers. I-Ieretofore it was necessary for this purpose to first remove the reflector before the mixing tube was free for removal. This requires two manipulations which in case of a hot lamp is by itself inconvenient to the attendant. Moreover there is the particular inconvenience that the attendant had to pull down with both hands in the direction of the axis of the lamp, the hot reflector plate usually held in position by spring actuated push buttons. These objections are remedied by the present invention according to which by a single manipulation the protecting cage and all the parts of the lamp that require cleaning and changing may be removed as an entirety.

A further advantage consists in the reduction of the expense of manufacture of this lamp as compared with that of the lamps heretofore in use. While in the lamps as heretofore used the reflector plate was at tached at the periphery of the lamp frame, it is fixed according to the present invention centrally to the mixing tube. Thereby the diameter of the lamp is reduced and the lamp becomes more compact and of better appearance and the expense of manufacturing the same is reduced, and the time and labor incurred changing the reflectors and glass shells saved. The size of the reflector Specification of Letters Patent.

Patented July 1, 1913.

Serial No. 671,453.

plate is reduced to a minimum because the downward reflection of light sent upward is no more necessary owing to the use of inverted incandescent mantles which send light mainly downward.

The annexed drawing illust ates by way of example a lamp embodying this invention in vertical central section.

The mixing tube Z) carries in the usual manner the mantle support If at the inner side of a ring 0 cast integral with the said tube. According to the invention the reflector plate 9' is screwed exteriorly on the said ring or can be cast integral with the mixing tube. The end of the mixing tube may contain the nozzle (Z but this latter might also be attached to the lamp frame. The mantle support If and the protecting cage 8 are secured to each other and the latter serves as a handle for removing the mixing tube. The reflector and the mantle support can be removed from the lamp by simply pushing such cage toward the spring actuated bolt f. Similarly the said parts may be inserted as an entirety into the lamp by a simple manipulation.

Claims:

1. In an incandescent gas lamp the combination of a frame, a spring actuated bolt located in such frame, a mixing tube adapted to be secured in such frame and to be engaged by the said spring actuated bolt whereby it is held in position in the said lamp frame, a burner head, a mantle support and a reflector, the three last named parts being secured to the mixing tube, substantially as and for the purpose described.

2. In an incandescent gas lamp the combination of a frame, a spring actuated bolt secured in such frame, a mixing tube adapted to be secured in such frame and to be engaged by the said spring actuated bolt whereby it is held in position in the said lamp frame, a burner head fast on the said mixing tube, a ring fast on the said mixing tube, a reflector secured to the exterior of such ring and a mantle support secured to the inside of the said ring, substantially as and for the purpose described.

3. In an incandescent lamp, the combina tion with a frame, of a mixing tube within the frame and having a downwardly extending ring on its lower face, a reflector secured to said ring, and means for removably securing the mixing tube in the frame.

4. In an illuminating device, the c01nbination of a supply nozzle, a mixing tube for In testimony whereof, I affix my signadetachably engaging sald nozzle, means for ture, in presence of tWo Witnesses.

holding said mixing tube in such engagement, a burner and arefiector carried by WILHELM GORLITZER' said tube, and a framework. or cage sur- Witnesses:

rounding said burner and serving as a han- ARTHUR GAMUSNUNG,

dle for disengaging the tube from the nozzle. AUGUST FUGGER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

